CN112919620A - Biological aeration sewage treatment system and biological aeration sewage treatment method - Google Patents
Biological aeration sewage treatment system and biological aeration sewage treatment method Download PDFInfo
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- CN112919620A CN112919620A CN202110132919.6A CN202110132919A CN112919620A CN 112919620 A CN112919620 A CN 112919620A CN 202110132919 A CN202110132919 A CN 202110132919A CN 112919620 A CN112919620 A CN 112919620A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses a biological aeration sewage treatment system and a biological aeration sewage treatment method, comprising a sewage treatment tank, wherein sewage to be treated is contained in the sewage treatment tank; the floating type aeration pipe device is movably inserted into sewage, the lower part of the floating type aeration pipe device is elastically connected with a sewage treatment tank, the upper part of the floating type aeration pipe device floats on the liquid level of the sewage, aeration micropores are densely distributed on the side part of the floating type aeration pipe device, and a vibration force providing device is arranged in the floating type aeration pipe device; an air supply duct supplying air to the floating aeration pipe device by a blower; the anti-sedimentation pipe device is vertically downwards fixed to be submerged in the sewage, the upper end of the anti-sedimentation pipe device is a water inlet end and is close to the liquid level of the sewage, the lower end of the anti-sedimentation pipe device is a water outlet end and is close to the water bottom of the sewage, and the anti-sedimentation pipe device extracts the sewage from the water inlet end and discharges the sewage from the water outlet end to impact the bottom of the sewage treatment tank; and the microorganism biofilm formation rotating device is vertically immersed in the sewage, and the lower end of the microorganism biofilm formation rotating device is rotationally matched with the bottom of the sewage treatment tank. The invention has good sewage treatment effect and high efficiency.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a biological aeration sewage treatment system and a biological aeration sewage treatment method.
Background
In the sewage purification treatment process, the aeration biological purification of sewage has the following defects: the aeration disc is fixed, and dirt in sewage is easy to adhere to the surface of the aeration disc to cause aeration micropore blockage, so that the aeration biological treatment efficiency is influenced; in addition, the bubbles formed by aeration float freely, and the condition of insufficient oxygen supply is easy to occur in the biofilm formation of the microorganisms in the process of biological oxidative decomposition treatment.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a biological aeration sewage treatment system and a biological aeration sewage treatment method, which have good sewage treatment effect and high efficiency.
The technical scheme is as follows: in order to achieve the above object, the present invention provides a biological aeration sewage treatment system, comprising a sewage treatment tank, wherein the sewage treatment tank contains sewage to be treated;
the floating type aeration pipe device is movably inserted into sewage, the lower part of the floating type aeration pipe device is elastically connected with the bottom of the sewage treatment tank, the upper part of the floating type aeration pipe device floats on the liquid level of the sewage, aeration micropores are densely distributed on the side part of the floating type aeration pipe device, and vibration force providing equipment is arranged in the floating type aeration pipe device;
an air supply duct supplying air to the floating aeration tube device by a mating blower;
the anti-sedimentation pipe device is vertically downwards fixed to be submerged in sewage, the upper end of the anti-sedimentation pipe device is a water inlet end and is close to the liquid level of the sewage, the lower end of the anti-sedimentation pipe device is a water outlet end and is close to the water bottom of the sewage, and the anti-sedimentation pipe device extracts the sewage from the water inlet end and discharges the sewage from the water outlet end to impact the bottom area of the sewage treatment tank;
and the microorganism biofilm formation rotating device is vertically immersed in the sewage, and the lower end of the microorganism biofilm formation rotating device is rotationally matched with the bottom of the sewage treatment tank.
Furthermore, the floating aeration pipe devices are arranged in a linear array, elastic traction connectors are arranged between adjacent floating aeration pipe devices, and the floating aeration pipe devices are elastically connected through the elastic traction connectors to form a floating aeration group;
the anti-deposition pipe devices are uniformly distributed between the adjacent floating aeration pipe devices;
the microorganism biofilm culturing rotating devices are a plurality of and are uniformly distributed at the central positions of the floating type aeration pipe devices which are arranged in a linear array.
Further, the floating type aeration pipe device comprises an aeration pipe, a vertical supporting spring, a buoyancy tank, a vibrator, an electric valve and a connecting hose;
the upper end of the aeration pipe is of an opening structure, the opening at the upper end of the aeration pipe is connected with a hose through the electric valve, and the hose is connected with a corresponding air supply pipeline;
the lower end of the aeration pipe is of a blocking structure, the aeration pipe is elastically supported by a vertical supporting spring, the upper end of the vertical supporting spring is fixedly connected with the lower end of the aeration pipe, and the lower end of the vertical supporting spring is fixedly connected with the bottom of the sewage treatment tank;
the buoyancy tank is arranged at the upper end of the aeration pipe, and the aeration pipe provides buoyancy support through the buoyancy tank floating on the sewage liquid level;
the vibration force providing device is a vibrator which is arranged in the buoyancy tank and provides vibration force to enable the floating type aeration pipe device to vibrate to generate floating action in sewage.
Furthermore, the connection point of the elastic traction connector is positioned on a buoyancy tank of the floating aeration pipe device, and the elastic traction connector is an elastic traction rope.
Further, the gas supply pipeline is a plurality of, a plurality of gas supply pipeline mutually perpendicular intercommunication constitutes the gas supply pipe network, at least one the air-blower butt joint the gas supply pipe network.
Further, the anti-deposition pipe device comprises an anti-deposition pipe, a deposition pipe bracket and a submersible pump; the anti-sedimentation pipe is fixedly connected with the bottom of the sewage treatment tank through a sedimentation pipe bracket; the water outlet end of the submersible pump is connected with the upper end pipe orifice of the anti-deposition pipe, the lower end pipe orifice of the anti-deposition pipe is in a shrinkage shape to form an inverted cone-shaped water outlet structure, and sewage discharged from the inverted cone-shaped water outlet structure vertically impacts the bottom of the sewage treatment tank downwards;
the side surface of the inverted cone-shaped water outlet structure is provided with a water outlet hole which is inclined upwards from the water inlet end to the water outlet end, and sewage discharged from the water outlet hole is inclined upwards.
Further, the microorganism biofilm culturing rotating device comprises a vertical shaft rod, a motor, an upper radial rod, a lower radial rod and elastic fillers; the vertical shaft lever is rotationally matched with the bottom of the sewage treatment tank; the motor is in driving connection with the vertical shaft rod; the upper radial rod and the lower radial rod are connected to the vertical shaft rod, the elastic filler is connected between the upper radial rod and the lower radial rod, and a microorganism hanging film is arranged on the elastic filler;
the elastic fillers are distributed in a circumferential array in the circumferential direction of the vertical shaft rod, and the motor drives the vertical shaft rod to drive the elastic fillers with the microorganism hanging films to slowly rotate.
A biological aeration sewage treatment method of a biological aeration sewage treatment system comprises three working conditions of aeration, sedimentation prevention of sewage at the bottom of a tank and microbial oxidation decomposition, and specifically comprises the following steps:
a) aeration and oxygenation working condition
The air blower blows air into an air supply pipe network and distributes the air to each floating type aeration pipe device through each air supply pipeline, the air in the aeration pipes is aerated into the sewage from the aeration micropores, on one hand, the sewage is aerated, and on the other hand, the microorganism biofilm culturing rotating device is supplied with oxygen;
in the aeration process, the floating type aeration pipe device is driven to vibrate by the vibrator, and the aeration pipe generates floating action in water due to the elastic support provided by the vertical support spring and the buoyancy support provided by the buoyancy box, so that the difficulty of attaching dirt on the aeration pipe is increased, the aeration micropores are prevented from being blocked, and the aeration efficiency is improved;
b) working condition of preventing deposition of dirt at bottom of pool
The submersible pump pumps sewage close to the liquid level into the anti-settling pipe, the sewage in the anti-settling pipe is discharged in two modes from the inverted cone-shaped water outlet structure and the water outlet hole, the sewage discharged from the inverted cone-shaped water outlet structure vertically impacts the bottom of the sewage treatment tank downwards so as to hit dirt deposited at the bottom of the tank or having a deposition trend, and the sewage discharged from the water outlet hole inclines upwards so as to impact and push the hit dirt upwards to disperse the dirt upwards, so that the floating type aeration pipe device is convenient to carry out aeration treatment and the microbial biofilm culturing rotating device is convenient to carry out oxidative decomposition, and the thoroughness and the efficiency of sewage treatment are improved;
the sewage is subjected to a series of operations of extraction and discharge, so that the integral fluidity of the sewage can be enhanced, and the sewage purification treatment is facilitated;
c) oxidative decomposition of microorganisms
The motor drives the vertical shaft lever to drive the elastic filler with the microorganism biofilm to slowly rotate, so that the microorganism biofilm fully receives oxygen, and the sewage in the sewage is more fully oxidized and decomposed;
a. and b and c are synchronously carried out.
Has the advantages that: the biological aeration sewage treatment system and the biological aeration sewage treatment method have the beneficial effects that:
1) the floating type aeration pipe device is floated by the vibration force during aeration, so that the phenomenon that sewage in sewage is attached to the aeration pipe to cause aeration micropore blockage can be avoided, the aeration effect is good, and the efficiency is high;
2) the anti-deposition pipe device not only can knock up dirt deposited at the bottom of the tank or having a deposition trend, but also can push the knocked-up dirt upwards in an impact manner so as to disperse the dirt upwards, so that the floating type aeration pipe device is convenient to carry out aeration treatment and the microorganism biofilm formation rotating device is convenient to carry out oxidative decomposition, and the thoroughness and efficiency of sewage treatment are improved;
3) the microorganism biofilm culturing rotating device is matched with the floating type aeration pipe device, biological purification treatment is carried out in the slow rotating process, oxygen supply is sufficient, and the biological purification treatment efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a floating aeration pipe device;
FIG. 3 is a schematic structural view of a deposition prevention pipe device;
FIG. 4 is a schematic structural view of the anti-settling tube device in a partially cut-away state;
FIG. 5 is a schematic structural diagram of a microbial biofilm culturing rotating device.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in the attached figure 1, a biological aeration sewage treatment system comprises a sewage treatment tank 1 which contains sewage to be treated.
The floating aeration pipe device 2 is movably inserted into sewage, the lower part is elastically connected with the bottom of the sewage treatment tank 1, the upper part floats on the liquid level of the sewage, the aeration micropores 210 are densely distributed on the side part, and the inside of the floating aeration pipe device is provided with vibration force providing equipment. More specifically, as shown in fig. 2, the floating aeration pipe device 2 comprises an aeration pipe 21, a vertical support spring 22, a buoyancy tank 23, a vibrator, an electric valve 24 and a connecting hose 25; the upper end of the aeration pipe 21 is of an opening structure, the upper opening of the aeration pipe is connected with a hose 25 through the electric valve 24, and the hose 25 is connected with the corresponding air supply pipeline 3; the lower end of the aeration pipe 21 is of a blocking structure, the aeration pipe 21 is elastically supported by a vertical supporting spring 22, the upper end of the vertical supporting spring 22 is fixedly connected with the lower end of the aeration pipe 21, and the lower end of the vertical supporting spring 22 is fixedly connected with the bottom of the sewage treatment tank 1; the buoyancy tank 23 is arranged at the upper end of the aeration pipe 21, and the aeration pipe 21 provides buoyancy support through the buoyancy tank 23 floating on the sewage liquid level; the vibration force providing device is a vibrator which is installed in the buoyancy tank 23 and provides vibration force to vibrate the floating aeration pipe device 2 to generate floating action in the sewage. The floating type aeration pipe device 2 is caused to float by vibration force while aerating, can avoid the sewage in the sewage from attaching to the aeration pipe 21 to cause the blockage of the aeration micropores 210, and has good aeration effect and high efficiency.
An air supply duct 3 that supplies air to the floating aerator pipe unit 2 by a mating blower 6. More specifically, the gas supply line 3 is a plurality of, a plurality of the mutually perpendicular intercommunication of gas supply line 3 constitutes gas supply pipe network 30, at least one the 6 butt joints of air-blower the gas supply pipe network 30.
Prevent sedimentary tube device 4, its vertical downward fixation submerges in the sewage, and the upper end is for intaking the end and be close to the liquid level of sewage, and the lower extreme is for going out the water end and be close to the submarine of sewage, prevent sedimentary tube device 4 from intaking end extraction sewage and from going out the bottom of a pool region that water end discharge impacted sewage treatment pond 1. More specifically, as shown in fig. 3 and 4, the deposition prevention pipe device 4 includes a deposition prevention pipe 41, a deposition pipe support 42, and a submersible pump 43; the anti-deposition pipe 41 is fixedly connected with the bottom of the sewage treatment tank 1 through a deposition pipe bracket 42; the water outlet end of the submersible pump 43 is connected with the upper end pipe orifice of the anti-deposition pipe 41, the lower end pipe orifice of the anti-deposition pipe 41 is in a shrinkage shape to form an inverted cone-shaped water outlet structure 410, and sewage discharged from the inverted cone-shaped water outlet structure 410 vertically impacts the bottom of the sewage treatment tank 1 downwards; the side surface of the inverted cone-shaped water outlet structure 410 is provided with a water outlet hole 4100 which is inclined upwards from the water inlet end to the water outlet end, and sewage discharged from the water outlet hole 4100 is inclined upwards. The anti-deposition pipe device 4 can not only knock off the sewage deposited at the bottom of the tank or having a deposition trend, but also push the knocked-off sewage upwards in an impacting manner, so that the sewage is upwards dispersed, the floating type aeration pipe device 2 is convenient to carry out aeration treatment, and the microorganism biofilm formation rotating device 5 is convenient to carry out oxidative decomposition, and the sewage treatment thoroughness and efficiency are improved.
And a microorganism biofilm formation rotating device 5 which is vertically submerged in the sewage and the lower end of which is rotationally matched with the bottom of the sewage treatment tank 1. More specifically, as shown in fig. 5, the microorganism biofilm culturing rotating device 5 comprises a vertical shaft rod 51, a motor 52, an upper radial rod 53, a lower radial rod 54 and an elastic filler 55; the vertical shaft lever 51 is rotationally matched with the bottom of the sewage treatment tank 1; the motor 52 is in driving connection with the vertical shaft rod 51; the upper radial rod 53 and the lower radial rod 54 are connected to the vertical shaft rod 51, the elastic filler 55 is connected between the upper radial rod 53 and the lower radial rod 54, and a microorganism hanging film is arranged on the elastic filler 55; the elastic fillers 55 are distributed in a circumferential array in the circumferential direction of the vertical shaft lever 51, and the motor 52 drives the vertical shaft lever 51 to drive the elastic fillers 55 with the microorganism hanging film to slowly rotate. The microorganism biofilm culturing rotating device 5 is matched with the floating type aeration pipe device 2, and carries out biological purification treatment in the slow rotating process, so that the oxygen supply is sufficient, and the biological purification treatment efficiency is improved.
It should be noted that the floating aeration pipe devices 2 are arranged in a linear array, the adjacent floating aeration pipe devices 2 are provided with elastic traction connectors 20.1, and the floating aeration pipe devices 2 are elastically connected by the elastic traction connectors 20.1 to form a floating aeration group 20. Because the floating aeration pipe device 2 is in a floating state, the problem of overlarge inclination angle caused by the influence of self vibration and sewage flow is avoided, and therefore, the elastic correction is carried out through the elastic traction connector 20.1, and the aeration is more facilitated.
The anti-deposition pipe devices 4 are uniformly distributed between the adjacent floating aeration pipe devices 2, and are reasonable in layout, wide in anti-deposition coverage range and comprehensive.
The microorganism biofilm culturing rotating devices 5 are uniformly distributed at the central positions of the floating aeration pipe devices 2 which are arranged in a linear array, so that one microorganism biofilm culturing rotating device 5 is provided with four floating aeration pipe devices 2 for aeration and oxygen supply, and the oxygen supply is sufficient.
More specifically, the connection point of the elastic traction connector 20.1 is positioned on the buoyancy tank 23 of the floating aeration pipe device 2, and the connection point is reasonable in position and timely and effective in correction. The elastic traction link 20.1 is preferably an elastic traction rope, although other existing link elements with elastic properties may be used.
A biological aeration sewage treatment method of a biological aeration sewage treatment system comprises three working conditions of aeration, sedimentation prevention of sewage at the bottom of a tank and microbial oxidation decomposition, and specifically comprises the following steps:
a) aeration and oxygenation working condition
The air blower 6 blows air into the air supply pipe network 30 and distributes the air to the floating aeration pipe devices 2 through the air supply pipelines 3, the air in the aeration pipe 21 is aerated into the sewage from the aeration micropores 210, on one hand, the sewage is aerated, and on the other hand, the microorganism biofilm culturing rotating device 5 is supplied with oxygen;
in the aeration process, the floating type aeration pipe device 2 is driven to vibrate by the vibrator, and the aeration pipe 21 generates floating action in water due to the elastic support provided by the vertical support spring 22 and the buoyancy support provided by the buoyancy tank 23, so that the difficulty of attaching dirt to the aeration pipe 21 is increased, the aeration micropores 210 are prevented from being blocked, and the aeration efficiency is improved;
b) working condition of preventing deposition of dirt at bottom of pool
The submersible pump pumps sewage close to the liquid level into the anti-sedimentation pipe 41, the sewage in the anti-sedimentation pipe 41 is discharged in two modes from the inverted cone-shaped water outlet structure 410 and the water outlet hole 4100, the sewage discharged from the inverted cone-shaped water outlet structure 410 vertically impacts the bottom of the sewage treatment tank 1 downwards so as to hit dirt deposited at the bottom of the tank or having a sedimentation tendency, and the sewage discharged from the water outlet hole 4100 inclines upwards so as to push the hit dirt upwards in an impacting manner and disperse the dirt upwards, so that the floating type aeration pipe device 2 is convenient to perform aeration treatment and the microorganism hanging film rotating device 5 is convenient to perform oxidative decomposition, and the thoroughness and efficiency of sewage treatment are improved;
the sewage is subjected to a series of operations of extraction and discharge, so that the integral fluidity of the sewage can be enhanced, and the sewage purification treatment is facilitated;
c) oxidative decomposition of microorganisms
The motor 52 drives the vertical shaft lever 51 to drive the elastic filler 55 with the microorganism biofilm formation to slowly rotate, so that the microorganism biofilm formation can fully receive oxygen, and the dirt in the sewage can be more fully oxidized and decomposed;
a. and b and c are synchronously carried out.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (8)
1. A biological aeration sewage treatment system is characterized in that: comprises a sewage treatment tank (1) which contains sewage to be treated;
a floating aeration pipe device (2) which is movably inserted into the sewage, the lower part of the floating aeration pipe device is elastically connected with the bottom of the sewage treatment tank (1), the upper part of the floating aeration pipe device floats on the liquid level of the sewage, the side part of the floating aeration pipe device is densely distributed with aeration micropores (210), and the floating aeration pipe device is internally provided with a vibration force providing device;
a supply air duct (3) supplying air to the floating aerator pipe arrangement (2) by means of a mating blower (6);
the anti-sedimentation pipe device (4) is vertically downwards fixed and submerged in the sewage, the upper end of the anti-sedimentation pipe device is a water inlet end and is close to the liquid level of the sewage, the lower end of the anti-sedimentation pipe device is a water outlet end and is close to the water bottom of the sewage, and the anti-sedimentation pipe device (4) extracts the sewage from the water inlet end and discharges the sewage from the water outlet end to impact the bottom area of the sewage treatment tank (1);
and the microorganism biofilm formation rotating device (5) is vertically immersed in the sewage, and the lower end of the microorganism biofilm formation rotating device is rotationally matched with the bottom of the sewage treatment tank (1).
2. A bio-aerated wastewater treatment system according to claim 1 wherein: the floating aeration pipe devices (2) are arranged in a linear array, elastic traction connectors (20.1) are arranged between the adjacent floating aeration pipe devices (2), and the floating aeration pipe devices (2) are elastically connected through the elastic traction connectors (20.1) to form a floating aeration group (20);
the number of the anti-deposition pipe devices (4) is a plurality, and the anti-deposition pipe devices are uniformly distributed between the adjacent floating aeration pipe devices (2);
the microorganism biofilm culturing rotating devices (5) are uniformly distributed at the central positions of the floating type aeration pipe devices (2) which are arranged in a linear array.
3. A bio-aerated wastewater treatment system according to claim 2 wherein: the floating type aeration pipe device (2) comprises an aeration pipe (21), a vertical supporting spring (22), a buoyancy tank (23), a vibrator, an electric valve (24) and a connecting hose (25);
the upper end of the aeration pipe (21) is of an opening structure, the opening at the upper end is connected with a hose (25) through the electric valve (24), and the hose (25) is connected with a corresponding air supply pipeline (3);
the lower end of the aeration pipe (21) is of a blocking structure, the aeration pipe (21) is elastically supported by a vertical supporting spring (22), the upper end of the vertical supporting spring (22) is fixedly connected with the lower end of the aeration pipe (21), and the lower end of the vertical supporting spring (22) is fixedly connected with the bottom of the sewage treatment tank (1);
the buoyancy tank (23) is arranged at the upper end of the aeration pipe (21), and the aeration pipe (21) provides buoyancy support through the buoyancy tank (23) floating on the sewage liquid level;
the vibration force providing equipment is a vibrator which is arranged in the buoyancy tank (23) and provides vibration force to enable the floating type aeration pipe device (2) to vibrate to generate floating action in sewage.
4. A bio-aerated wastewater treatment system according to claim 3 wherein: the connection point of the elastic traction connector (20.1) is positioned on a buoyancy tank (23) of the floating aeration pipe device (2), and the elastic traction connector (20.1) is an elastic traction rope.
5. A bio-aerated wastewater treatment system according to claim 4 wherein: the gas supply pipeline (3) is a plurality of, a plurality of gas supply pipeline (3) mutually perpendicular intercommunication constitutes gas supply pipe network (30), at least one air-blower (6) butt joint gas supply pipe network (30).
6. A bio-aerated wastewater treatment system according to claim 5 wherein: the anti-deposition pipe device (4) comprises an anti-deposition pipe (41), a deposition pipe bracket (42) and a submersible pump (43); the anti-deposition pipe (41) is fixedly connected with the bottom of the sewage treatment tank (1) through a deposition pipe bracket (42); the water outlet end of the submersible pump (43) is connected with the upper end pipe orifice of the anti-deposition pipe (41), the lower end pipe orifice of the anti-deposition pipe (41) is in a shrinkage shape to form an inverted cone-shaped water outlet structure (410), and sewage discharged from the inverted cone-shaped water outlet structure (410) vertically impacts the bottom of the sewage treatment tank (1) downwards;
the side surface of the inverted cone-shaped water outlet structure (410) is provided with a water outlet hole (4100) which is inclined upwards from the water inlet end to the water outlet end, and sewage discharged from the water outlet hole (4100) is inclined upwards.
7. A bio-aerated wastewater treatment system according to claim 6 wherein: the microorganism biofilm culturing rotating device (5) comprises a vertical shaft rod (51), a motor (52), an upper radial rod (53), a lower radial rod (54) and an elastic filler (55); the vertical shaft lever (51) is rotationally matched with the bottom of the sewage treatment tank (1); the motor (52) is in driving connection with the vertical shaft rod (51); the upper radial rod (53) and the lower radial rod (54) are connected to the vertical shaft rod (51), the elastic filler (55) is connected between the upper radial rod (53) and the lower radial rod (54), and a microorganism hanging film is arranged on the elastic filler (55);
the elastic fillers (55) are distributed in a circumferential array in the circumferential direction of the vertical shaft rod (51), and the motor (52) drives the vertical shaft rod (51) to drive the elastic fillers (55) with the microorganism hanging film to slowly rotate.
8. A bio-aeration wastewater treatment method for a bio-aeration wastewater treatment system according to claim 7, wherein: the method comprises three working conditions of aeration, sedimentation prevention of sewage at the bottom of the pool and microbial oxidation and decomposition, and the specific conditions are as follows:
a) aeration and oxygenation working condition
The air blower (6) blows air into the air supply pipe network (30) and distributes the air to the floating aeration pipe devices (2) through the air supply pipelines (3), the air in the aeration pipe (21) is aerated into the sewage from the aeration micropores (210), on one hand, the sewage is aerated, and on the other hand, the microorganism hanging film rotating device (5) is supplied with oxygen;
in the aeration process, the floating type aeration pipe device (2) is driven to vibrate by the vibrator, and due to the elastic support provided by the vertical support spring (22) and the buoyancy support provided by the buoyancy tank (23), the aeration pipe (21) generates floating action in water, so that the difficulty of attaching dirt to the aeration pipe (21) is increased, the aeration micropores (210) are prevented from being blocked, and the aeration efficiency is improved;
b) working condition of preventing deposition of dirt at bottom of pool
The submersible pump pumps sewage close to the liquid level into the anti-sedimentation pipe (41), the sewage in the anti-sedimentation pipe (41) is discharged in two modes from the inverted cone-shaped water outlet structure (410) and the water outlet hole (4100), the sewage discharged from the inverted cone-shaped water outlet structure (410) vertically impacts the bottom of the sewage treatment tank (1) downwards, so that dirt deposited at the bottom of the tank or having a sedimentation trend is knocked up, the sewage discharged from the water outlet hole (4100) inclines upwards, the knocked dirt is pushed upwards in an impacting manner, and the dirt is upwards dispersed, so that the floating type aeration pipe device (2) is conveniently utilized for aeration treatment, the microorganism hanging film rotating device (5) is utilized for oxidation decomposition, and the sewage treatment thoroughness and efficiency are improved;
the sewage is subjected to a series of operations of extraction and discharge, so that the integral fluidity of the sewage can be enhanced, and the sewage purification treatment is facilitated;
c) oxidative decomposition of microorganisms
The motor (52) drives the vertical shaft lever (51) to drive the elastic filler (55) with the microorganism biofilm formation to slowly rotate, so that the microorganism biofilm formation can fully receive oxygen, and the dirt in the sewage can be more fully oxidized and decomposed;
a. and b and c are synchronously carried out.
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| CN202110132919.6A CN112919620A (en) | 2021-02-01 | 2021-02-01 | Biological aeration sewage treatment system and biological aeration sewage treatment method |
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| CN202110132919.6A CN112919620A (en) | 2021-02-01 | 2021-02-01 | Biological aeration sewage treatment system and biological aeration sewage treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115340264A (en) * | 2022-10-19 | 2022-11-15 | 广东新泰隆环保集团有限公司 | Multistage purification's difficult degradation organic waste water purifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115340264A (en) * | 2022-10-19 | 2022-11-15 | 广东新泰隆环保集团有限公司 | Multistage purification's difficult degradation organic waste water purifier |
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